The Boston Celtics made two roster moves on Sunday. First, they added big man Charles Bassey on a 10-day contract. The second move was to convert rookie Max Shulga from a two-way contract to a standard NBA contract. Boston made that decision as they’ve used up their allocated 28 days where they can be under 14 full-time contracts.

The Boston Celtics made a move around the fringes that had some fans scratching their heads. The Celtics signed two-way player Max Shulga to a standard NBA contract, per ESPN’s Shams Charania.

The Celtics still have one open 15-man roster spot, which they’ve kept vacant since the start of the season. They could fill it before the playoffs by promoting Ron Harper Jr., who’s seen by far the most NBA playing time among Boston’s current two-way players.

The Celtics made a pair of moves this weekend, adding Charles Bassey and Max Shulga to the team’s 15-man roster. The deals will become official on Sunday, bringing the team’s 15-man roster up to 14 players.

Here's what to know about the latest sequence of masterful maneuvering by the Boston Celtics as the playoffs approach.

The Celtics are promoting two-way guard Max Shulga to their 15-man roster, a team source confirmed to MassLive. Boston originally signed the No. 57 overall pick in the 2025 NBA Draft to a two-way deal last July.

The Boston Celtics are signing two-way Max Shulga on a standard two-year contract, sources tell ESPN. The Ukrainian guard went to Boston with the No. 57 pick in last June's NBA draft and has spent the season with Maine in the G League.